Table 2.

Assignment of the FTIR spectra of gold nanoparticles presented in Fig. 4

AuNPs
Fundamental vibrations	Frequency (cm−1)
O–H stretch	3429.78
Asymmetric C-H stretching	2923.56
C-H stretching	2365.26
C = C stretching	1612.2
C–OH in plane bending	1417.42
C-O stretching	1244.83
CO–O-C symmetric stretching	1078.01
NH2 wagging and twisting	837.91
C = O stretching	609.39